1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.prism.sw;
27
28 import com.sun.prism.Image;
29 import com.sun.prism.PixelFormat;
30 import com.sun.prism.Texture;
31 import com.sun.prism.impl.PrismSettings;
32
33 abstract class SWTexture implements Texture {
34
35 static Texture create(SWResourceFactory factory, PixelFormat formatHint, WrapMode wrapMode, int w, int h) {
36 switch (formatHint) {
37 case BYTE_ALPHA:
38 return new SWMaskTexture(factory, wrapMode, w, h);
39 default:
40 return new SWArgbPreTexture(factory, wrapMode, w, h);
41 }
42 }
43
44 boolean allocated = false;
45 int physicalWidth, physicalHeight, contentWidth, contentHeight;
46 private SWResourceFactory factory;
47 private int lastImageSerial;
48 private final WrapMode wrapMode;
49
50 SWTexture(SWResourceFactory factory, WrapMode wrapMode, int w, int h) {
51 this.factory = factory;
52 this.wrapMode = wrapMode;
53 physicalWidth = w;
54 physicalHeight = h;
55 contentWidth = w;
56 contentHeight = h;
57 lock();
58 }
59
60 SWTexture(SWTexture sharedTex, WrapMode altMode) {
61 this.allocated = sharedTex.allocated;
62 this.physicalWidth = sharedTex.physicalWidth;
63 this.physicalHeight = sharedTex.physicalHeight;
64 this.contentWidth = sharedTex.contentWidth;
65 this.contentHeight = sharedTex.contentHeight;
66 this.factory = sharedTex.factory;
67 // REMIND: Use indirection to share the serial number?
68 this.lastImageSerial = sharedTex.lastImageSerial;
69 this.wrapMode = altMode;
70 lock();
71 }
72
73 SWResourceFactory getResourceFactory() {
74 return this.factory;
75 }
76
77 int getOffset() {
78 return 0;
79 }
80
81 private int lockcount;
82 public void lock() {
83 lockcount++;
84 }
85
86 public void unlock() {
87 assertLocked();
88 lockcount--;
89 }
90
91 public boolean isLocked() {
92 return (lockcount > 0);
93 }
94
95 public int getLockCount() {
96 return lockcount;
97 }
98
99 public void assertLocked() {
100 if (lockcount <= 0) {
101 throw new IllegalStateException("texture not locked");
102 }
103 }
104
105 boolean permanent;
106 public void makePermanent() {
107 permanent = true;
108 }
109
110 int employcount;
111 public void contentsUseful() {
112 assertLocked();
113 employcount++;
114 }
115
116 public void contentsNotUseful() {
117 if (employcount <= 0) {
118 throw new IllegalStateException("Resource obsoleted too many times");
119 }
120 employcount--;
121 }
122
123 public boolean isSurfaceLost() {
124 return false;
125 }
126
127 @Override
128 public void dispose() { }
129
130 @Override
131 public int getPhysicalWidth() {
132 return physicalWidth;
133 }
134
135 @Override
136 public int getPhysicalHeight() {
137 return physicalHeight;
138 }
139
140 @Override
141 public int getContentX() {
142 return 0;
143 }
144
145 @Override
146 public int getContentY() {
147 return 0;
148 }
149
150 @Override
151 public int getContentWidth() {
152 return contentWidth;
153 }
154
155 @Override
156 public void setContentWidth(int contentWidth) {
157 if (contentWidth > physicalWidth) {
158 throw new IllegalArgumentException("contentWidth cannot exceed physicalWidth");
159 }
160 this.contentWidth = contentWidth;
161 }
162
163 @Override
164 public int getContentHeight() {
165 return contentHeight;
166 }
167
168 @Override
169 public void setContentHeight(int contentHeight) {
170 if (contentHeight > physicalHeight) {
171 throw new IllegalArgumentException("contentHeight cannot exceed physicalHeight");
172 }
173 this.contentHeight = contentHeight;
174 }
175
176 @Override
177 public int getMaxContentWidth() {
178 return getPhysicalWidth();
179 }
180
181 @Override
182 public int getMaxContentHeight() {
183 return getPhysicalHeight();
184 }
185
186 public int getLastImageSerial() {
187 return lastImageSerial;
188 }
189
190 public void setLastImageSerial(int serial) {
191 lastImageSerial = serial;
192 }
193
194 @Override
195 public void update(Image img) {
196 this.update(img, 0, 0);
197 }
198
199 @Override
200 public void update(Image img, int dstx, int dsty) {
201 this.update(img, dstx, dsty, img.getWidth(), img.getHeight());
202 }
203
204 @Override
205 public void update(Image img, int dstx, int dsty, int srcw, int srch) {
206 this.update(img, dstx, dsty, srcw, srch, false);
207 }
208
209 @Override
210 public void update(Image img, int dstx, int dsty, int srcw, int srch, boolean skipFlush) {
211 if (PrismSettings.debug) {
212 System.out.println("IMG.Bytes per pixel: " + img.getBytesPerPixelUnit());
213 System.out.println("IMG.scanline: " + img.getScanlineStride());
214 }
215 this.update(img.getPixelBuffer(), img.getPixelFormat(), dstx, dsty,
216 img.getMinX(), img.getMinY(), srcw, srch, img.getScanlineStride(), skipFlush);
217 }
218
219 @Override
220 public WrapMode getWrapMode() {
221 return wrapMode;
222 }
223
224 @Override
225 public boolean getUseMipmap() {
226 // TODO: Currently mipmapping not support for software texture
227 return false;
228 }
229
230 public Texture getSharedTexture(WrapMode altMode) {
231 assertLocked();
232 if (wrapMode == altMode) {
233 lock();
234 return this;
235 }
236 switch (altMode) {
237 case REPEAT:
238 if (wrapMode != WrapMode.CLAMP_TO_EDGE) {
239 return null;
240 }
241 break;
242 case CLAMP_TO_EDGE:
243 if (wrapMode != WrapMode.REPEAT) {
244 return null;
245 }
246 break;
247 default:
248 return null;
249 }
250 return this.createSharedLockedTexture(altMode);
251 }
252
253 @Override
254 public boolean getLinearFiltering() {
255 return false;
256 }
257
258 @Override
259 public void setLinearFiltering(boolean linear) { }
260
261 void allocate() {
262 if (allocated) {
263 return;
264 }
265 if (PrismSettings.debug) {
266 System.out.println("PCS Texture allocating buffer: " + this + ", " + physicalWidth + "x" + physicalHeight);
267 }
268 this.allocateBuffer();
269 allocated = true;
270 }
271
272 abstract void allocateBuffer();
273
274 /**
275 * Returns a new {@code Texture} object sharing all of the information
276 * from this texture, but using the new {@code WrapMode}.
277 * The new texture will be locked (in contrast to the similarly-named
278 * method in BaseTexture).
279 *
280 * @param altMode the new {@code WrapMode} for the new texture
281 * @return a new, locked, texture object sharing all information with
282 * this texture except for the {@code WrapMode}
283 */
284 abstract Texture createSharedLockedTexture(WrapMode altMode);
285 }